Endocrine System Homeostasis and Integration of Systems
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A question pack on the endocrine system from the Open Learning Initiative.
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Most endocrine glands produce and secrete their hormones as needed. Which of these pairs of glands are exceptions, storing major amounts of hormone?
parathyroid and adrenal cortex
pancreas and anterior pituitary
thyroid and posterior pituitary
ovary and testes
Which of the following glands is NOT a source of a steroid hormone?
Some glands are stimulated by neurons rather than hormones (tropic) or receptors monitoring an internal stimulus that changes (humoral). Which of the following gland’s secretion is NOT regulated by neural stimuli?
Which hormone is secreted by multiple endocrine glands?
The pancreas is both an endocrine and exocrine gland. Which of the following would fit with its endocrine, not exocrine function?
Which of the following is not matched with its primary function and its secondary endocrine function?
Thymus: Primary function mature T-cells; secondary endocrine function thymosins to aid the immune system.
Heart: Primary function is pump blood; secondary endocrine function ANP to reduce blood volume.
Kidney: Primary function is filter blood and produce urine; secondary endocrine function promotes satiety.
GI tract: Primary function digestion, absorption, excretion of nutrients and wastes. Secondary endocrine function gastrin to aid in digestion.
Which of the following combination of hormones are involved in regulating water homeostasis?
ADH, Renin, Aldosterone
ADH, Gastrin, Angiotension
ADH, Secretin, Aldosterone
ACTH, Secretin, Aldosterone
FSH and LH from the anterior pituitary regulate the release of hormones from the gonads. Which classification is correct for these two hormones?
Testosterone and estrogen from the gonads regulate the production of gametes. Which classification is correct for these two hormones?
Two hormones are involved in the combined production and release of milk. Which of them are involved in a positive feedback mechanism?
both oxytocin and prolactin
Which of the following is not a hormone involved in regulating both the male and female reproductive systems?
In addition to the testes, what other endocrine gland produces a small amount of testosterone?
The adrenal medulla
The adrenal cortex
The posterior pituitary
The anterior pituitary
What gland produces the hormones that control prolactin levels?
The posterior pituitary
The anterior pituitary
After a meal is consumed you would expect:
Blood glucose to go down and glycogen to go up.
Blood glucose to go down and glycogen to go down.
Blood glucose to go up and insulin to go up.
Blood glucose to go up and insulin to go down.
Which of the following is not properly matched?
Glucagon stimulates the conversion of glucose to fatty acids.
Triiodothyronine increases body heat production.
Thyroxine increases glucose oxidation.
Insulin stimulates glycogen formation.
Which of the following statements is correct:
Hyperthyroidism would be associated with too much iodine.
Hypothyroidism is associated with weight gain, cold-intolerance and fatigue.
Hypoglycemia is associated with reduced urine production.
Hyperglycemia is associated with too much insulin.
In addition to insulin and thyroid hormones, several other hormones affecting growth, repair and stress will directly or indirectly affect glucose levels in the blood. Which of the following would NOT be involved in this glucose regulation?
Which of the following would not be stimulated by calcitonin?
decreased parathyroid hormone
decreased intestinal absorption
increased calcium in urine
What other ion’s homeostasis would be linked to the calcium homeostasis regulated by these hormones?
Which of the following is not a target of parathyroid hormone?
Which of the following disorders is a result of not being able to regulate calcium levels?
Which of the following does not produce a hormone directly involved in regulating cell division and growth?
What is the effect of an overproduction of growth hormone in children and in adults?
In children it can cause excessive proportional growth; in adults it primarily affects the bones of the face, hands and feet.
It has the same effect of causing excessive growth of all bones in both children and adults.
In children it primarily affects the bones of the face, hands and feet; in adults it can cause excessive proportional growth
In children it can cause pituitary dwarfism; in adults it primarily affects the bones of the face, hands and feet.
Which of the following hormones is involved in short-term stress?
Which hormone is not responsible for long-term stress response?
Malignant cancer that invades the bone is the second most common cause of hypercalcemia (excess plasma calcium concentration). As it destroys the bone cells, it releases a substance that mimics the action of which hormone?
thyroid releasing hormone
thyroid hormones T3 & T 4
Alcoholics typically have poor nutrition intake that can affect their intake of nutrients and often have reduced calcium and magnesium intake. The low magnesium decreases the body’s ability to secrete parathyroid hormone. This combined condition would put them at greater risk of developing which condition?
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